{"id":"CVE-2026-41870","state":"PUBLISHED","title":"Apache Nutch: Unauthenticated remote code execution (RCE) via JEXL injection in Nutch Server (Nutch REST API)","description":"Missing Authorization, Improper Control of Generation of Code ('Code Injection'), Improper Control of Dynamically-Managed Code Resources, Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Apache Nutch Server  (Nutch REST API).\n\n\n\nThis issue affects Apache Nutch: from 1.11 through 1.22.\n\n\n\nUsers are recommended to upgrade to version 1.23, which removes the Nutch Server.\nIf an upgrade is not possible, user must restrict access to instances running the Nutch Service to trusted users only.\nPlease, also visit the  Apache Nutch security advisories https://nutch.apache.org/documentation/security/ .","publishedAt":"2026-09-09T10:43:04.894Z","updatedAt":"2026-09-10T18:03:38.898Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Nutch"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Nutch","defaultStatus":"unaffected","versions":[{"version":"1.11","status":"affected","lessThanOrEqual":"1.22","versionType":"custom"}]}],"references":["https://lists.apache.org/thread/3pl59g0jzqx1bdh5w92qoftzn7c3x8j2","http://www.openwall.com/lists/oss-security/2026/09/08/4"],"weaknesses":["CWE-862","CWE-94","CWE-913","CWE-470"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/41xxx/CVE-2026-41870.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-41870","state":"PUBLISHED","datePublished":"2026-09-09T10:43:04.894Z","dateUpdated":"2026-09-10T18:03:38.898Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-04-22T06:33:41.605Z"},"containers":{"cna":{"title":"Apache Nutch: Unauthenticated remote code execution (RCE) via JEXL injection in Nutch Server (Nutch REST API)","descriptions":[{"lang":"en","value":"Missing Authorization, Improper Control of Generation of Code ('Code Injection'), Improper Control of Dynamically-Managed Code Resources, Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Apache Nutch Server  (Nutch REST API).\n\n\n\nThis issue affects Apache Nutch: from 1.11 through 1.22.\n\n\n\nUsers are recommended to upgrade to version 1.23, which removes the Nutch Server.\nIf an upgrade is not possible, user must restrict access to instances running the Nutch Service to trusted users only.\nPlease, also visit the  Apache Nutch security advisories https://nutch.apache.org/documentation/security/ ."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Nutch","defaultStatus":"unaffected","versions":[{"version":"1.11","status":"affected","lessThanOrEqual":"1.22","versionType":"custom"}]}],"references":[{"url":"https://lists.apache.org/thread/3pl59g0jzqx1bdh5w92qoftzn7c3x8j2","tags":["vendor-advisory"]}],"metrics":[{"other":{"type":"Textual description of severity","content":{"text":"critical"}},"scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-94","description":"CWE-94 Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-913","description":"CWE-913 Improper Control of Dynamically-Managed Code Resources","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-470","description":"CWE-470 Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-09-09T10:43:04.894Z"},"source":{"defect":["NUTCH-3165","NUTCH-3168"],"discovery":"EXTERNAL"},"credits":[{"lang":"en","value":"The Apache Nutch Project Management Committee would like to thank Th1nk for reporting this issue.","type":"reporter"}],"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/09/08/4"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-09-09T11:10:16.941Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.8,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T18:02:40.346908Z","id":"CVE-2026-41870","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-10T18:03:38.898Z"}}]}}}